Hey @SitzfleischGame! Welcome to the forums!
This sounds to me like maybe you’re on the wrong account? Did you have games purchased under that account as well, are they also not there?
Try to contact Epic Support through this link! They’ll be more likely to be able to help you! 
https://www.epicgames.com/help/en-US/c-Category_TechnicalSupport/c-TechnicalSupport_GeneralSupport/how-to-contact-epic-support-a000085836?sessionInvalidated=true